Prawn grading equipment fault simulation and detection experiment table

Abstract

The invention discloses a prawn grading equipment fault simulation and detection experiment table. According to the experiment table, a shell seat position regulation device is utilized to change theposition of an easy-to-change bearing shell seat of a movable shaft roller relative to a driving end, a non-centering fault of a bearing of the movable shaft roller of prawn grading equipment is simulated, and a vibration signal is detected through a sensor. A bearing damage fault is simulated by changing a faulty bearing in the easy-to-change bearing shell seat, and a vibration signal is detectedthrough the sensor. A bearing looseness fault is simulated by loosening a set bolt of a bearing seat at a non-driving end of a fixed shaft roller, and a vibration signal is detected through the sensor. An unbalance fault caused by shaft roller bending deformation is simulated by installing and adjusting a mass block on a big disk on the fixed shaft roller, and a vibration signal is detected through a vibration displacement measurement device. A combined fault composed of individual faults also can be simulated and detected. The experiment table is used for prawn grading equipment fault mechanism research and fault feature extraction method research and is beneficial for actively maintaining the equipment, increasing the equipment utilization rate and guaranteeing grading precision.

Description

technical field [0001] The invention relates to a fault simulation and detection experiment platform for prawn grading equipment, belonging to the technical field of experimental research on aquatic product processing equipment. Background technique [0002] Shrimp is rich in nutrients and has a large social demand. Under the condition of large-scale farming, grading equipment is often used for grading in rough processing of prawns to achieve the purpose of differentiated sales. Its size range is also different, so it is necessary to frequently adjust the axial distance between the movable shaft roller and the fixed shaft roller, which often causes misalignment of the bearings at both ends of the movable shaft roller. At the same time, due to the influence of water erosion, vibration, large span and other working conditions It is prone to failures such as bearing damage, loose support, and rotor mass imbalance caused by bending deformation of the shaft and roller, which affe...

AI Technical Summary

Problems solved by technology

[0002] Shrimp is rich in nutrients and has a large social demand. Under the condition of large-scale farming, grading equipment is often used for grading in rough processing of prawns to achieve the purpose of differentiated sales. Its size range is also different, so it is necessary to frequently adjust the axial distance between the movable shaft roller and the fixed shaft roller, which often causes misalignment of the bearings at both ends of the movable shaft roller. At the same time, due to the influence of water erosion, vibration, large span and other working conditions It is prone to failures such as bearing damage, loose support, and shaft and roller bending deformation causing rotor mass imbalance, which affects the accuracy and reliability of equipment classification

[0003] Due to the different mechanical structures of the existing fault detection experimental platform, it is difficult to accurately simulate and detect the faults of key parts of the shrimp grading equipment, which is not conducive to the experimental research of its fault mechanism and diagnostic methods

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